Headphone



FIG. 1 is a perspective view of a headphone;

FIG. 2 is a front elevational view of the headphone;

FIG. 3 is a rear elevational view of the headphone;

FIG. 4 is a top plan view of the headphone;

FIG. 5 is a bottom plan view of the headphone;

FIG. 6 is a left side elevational view of the headphone;

FIG. 7 is a right side elevational view of the headphone;

FIG. 8 is a reference perspective view showing a driver unit of the headphone, separately for ease of illustration; and,

FIG. 9 is a reference perspective view showing a cover of the headphone, separately for ease of illustration.

Shades appearing on the surface of the article in each photograph are reflection shadows due to lighting used for photography or three-dimensional shape of each part of the article and form no part of the claimed design. 

CLAIM We claim the ornamental design for a headphone, as shown and described. 